Universal joint



(N0 Model.)

G. P. FENNER. UNIVERSAL JOINT. N0. 545,353. Patent-ad Aug. 27, 1895.

F: 1 .Fz' .Z

ATTOR N EYS.

'lhe balLand-sooket joints 10 am]. 11 will re- UNITED STATES PATENT OFFICE.

GEORGE P. FENNER, OB NEW LONDON, CONNECTIGUT.

UNIVERSAL JOINT.

SPECIFIGATION forming pa.rt of Letters Patent N0. 545,353, tlatecl August 27, 1 895.

Application filetl J'annary 3, 1895.

T all w7wm it may concern:

Be it known that I, GEORGE P. FEN'NER, a citizen of the United States, rosiding at New London, in tho oounty of New London anti State of Connecticut, have invented new 3J1d useful Improvements in Universal Joints, of whioh oho following is a speoification.

'll1e obieot of this invention is t0 provide a. universal joint oomprising the novel featuros of oonstrnction set forth in the following speoifioation anti cla.ims, a.nd illustrated in the annoxecl drawings, in which Fignre 1 is a sie elevation of the joint. Fig'. 2 is an end elovation of Fig. l.

'll1e pieces 01 heads 1 ancl 2 a.re fixed or seoured to their respeetive shafts 8 and 9. T0 the pieces 1 and 2 are jointed tho links 3, 4., 5, and 6. The links 3 and 4= are jointetl to one another at 10 anti th'e links 5 and 6' am jointed t0 one another at 11. The links a.re eccentrically jointed to alle heads 1 and 2. The links 3, 4, 5, and 6 being of eqnal length,

main central between the pieees 1 anti 2, althongl1 the rota.tion of said pieces 1 and 2 when inclinecl toward one another will cause the joints 10 anti 11 to move towarcl and from tl1 e shafts 8 and. 9 ortoward and from tho canters 0f the pieces 1 und 2, and the revolving motions of the hafts 8 and 9 are aliko a.t all times. 4

In tl1e drawings is shown a joint 7 at the nenters of the pieces 1 and 2. 'll1isball-and-socket joint 7 is not a neoessity. I have also found Serial N0. 533,747. (N0 model.)

that one pair of links, as 3 and 4, is suffieient for eonneeting the heads 1 and 2. As, howevor, bat one pair of links is apt to disturb the balanoe, especially when revolving at a high rate of speed, it is of advantago to have oppositoly-looated link pairs as 3 4 and 5 6. As a single link pair wonld. not loe so (lurable as tho link pairs 3 4 and 5 6, I prefer t he latter arrangemont. Tho links when nsed in eonnection with the (Zentral joint 7 will givo a joint having steadiness anti durability.

What I olaim a.s new, and desire to Seoure by Letters Patent, is-

1. A joint, eonsisting of tl1o shafts 8 anl 9, the heads 1 and 2 rigidly fixed respectively to the shafts, and each having its ends lying als opposite sidos of tho shafts, a.nd two pairs 0f links, the links of oaol1 pair being pivoted together, and the two pairs being symmetrically disposed and pivoted respeotively to the ends of the hoads at the opposite sides of the shafts, Substantially as shown and described.

2. A joint comprising the pieees or hoads 1 and. 2 jointod oentrally to one anothor, in cornbination with a link j ointed to eaeh piece, said links heilig jointed so one another substantially as described.

In testimony whereof I have herennto set my band in the presence of two subscribing witnesses.

GEORGE P. FENNER, Witnesses:

NATHAN BABCOCK, WALTER E. SPICER. 

